De_Train_Winter from CS:S for CS 1.6
Here is the port of the de_train map from CSS to CS 1.6 with a winter atmosphere and snowfall. The location is quite well developed and will give you high-quality gameplay. You can safely install it on your game server, or just play locally with bots.
so we recommend to download cs 1.6 - identical to the Steam build and configured for comfortable gaming.